Math & Technology

Topic Image Rail

IT’SELECTRIC A new type of energy source made with hydrogel disks (shown) works a lot like the power-producing organs inside electric eels.

Thomas Schroeder and Anirvan Guha

LISTENING IN A computer code picked out six new types of dolphin clicks from several months’ worth of underwater sound recordings.

Smokin_louise_naturephoto/Shutterstock

AI SPY A new type of artificial neural network has its virtual neurons (like the one illustrated above) organized into clusters called capsules. This helps the network more easily identify objects from new angles than its traditional counterparts.